Cyclic azolylvinyl ether fungicides

Abstract

Fungicidally active novel cyclic azolylvinyl ethers of the formula <IMAGE> in which A is a nitrogen atom or the CH group; Ar is optionally substituted phenyl, R1 to R6

We claim: 
     
       1. A cyclic azolylvinyl ether of the formula ##STR10## in which A is a nitrogen atom or the CH group, Ar is phenyl which is optionally substituted by halogen, alkyl or alkoxy with in each case 1 to 4 carbon atoms, halogenoalkyl, halogenoalkoxy or halogenoalkylthio with in each case 1 or 2 carbon atoms and 1 to 5 halogen atoms, nitro, cyano, in each case optionally halogen-substituted phenyl or phenoxy, and/or cycloalkyl with 5 or 6 carbon atoms,   R 1  to R 6  each independently is hydrogen or alkyl with 1 to 4 carbon atoms, and   n is 0 or 1, or an addition product thereof with an acid or metal salt.   
     
     
       2. A cyclic azolylvinyl ether or addition product according to claim 1, in which   Ar is phenyl which is optionally mono-, di- or trisubstituted by fluorine, chlorine, bromine, methyl, ethyl, methoxy, trifluoromethyl, trifluoromethoxy, tri- fluoromethylthio, nitro, cyano, phenyl or phenoxy in each case optionally substituted by fluorine or chlorine, and/or cyclohexyl, and   R 1  to R 6  each independently is hydrogen, methyl, ethyl or isopropyl.   
     
     
       3. An ether according to claim 1, wherein such ether is 1-(4-biphenyl-yl)-2-(1,2,4-triazol-1-yl)-4,5-dihydropyran of the formula ##STR11## or an addition product thereof with an acid or metal salt. 
     
     
       4. An ether according to claim 1, wherein such ether is 1-(4-chlorophenyl)-2-(1,2,4-triazol-1-yl)-4,5-dihydropyran of the formula ##STR12## or an addition product thereof with an acid or metal salt. 
     
     
       5. An ether according to claim 1, wherein such ether is 1-(4-biphenyl-yl)-2-(imidazol-1-yl)-4,5-dihydropyran of the formula ##STR13## or an addition product thereof with an acid or metal salt. 
     
     
       6. A fungicidal composition comprising a fungicidally effective amount of an ether or addition product thereof according to claim 1 in admixture with a diluent. 
     
     
       7. A method of combating fungi which comprises administering to such fungi or to a fungus habitat a fungicidally effective amount of an ether or addition product thereof according to claim 1. 
     
     
       8. The method according to claim 7, wherein which ether is 1-(4-biphenyl-yl)-2-(1,2,4-triazol-1-yl)-4,5-dihydropyran,   1-(4-chlorophenyl)-2-(1,2,4-triazol-1-yl)-4,5-dihydropyran or   1-(4-biphenyl-yl)-2-(imidazol-1-yl)-4,5-dihydropyran, or an addition product thereof with an acid or metal salt.